What are radians? Radians are an alternative to degrees for measuring angles 1 radian is the angle in a?sector?of radius 1 and arc length 1 A circle with radius 1 is called a?unit circle Radians ar...
What are cartesian coordinates? Cartesian?coordinates are basically the?x-y?coordinate system They allow us to label where things are in a two-dimensional plane In the 2D cartesian system, the hori...
What effects do reciprocal transformations have on the graphs? The?x-coordinates stay the same The?y-coordinates change Their values become their?reciprocals If?y?= 0 then a vertical asymptote goes...
How do I find the modulus of a function? How do I solve modulus equations graphically? To solve |f(x)| =?g(x) graphically Draw?y?= |f(x)| and?y?=?g(x) into your GDC Find the?x-coordinates of the?po...
How do I sketch the graph of the modulus of a function:?y?= |f(x)|? STEP 1: Keep the parts of the graph of?y?=?f(x) that are?on or?above the?x-axis STEP 2: Any parts of the?graph below the x-axis?g...
What is the modulus function? At the vertex The function is?continuous The function is?not differentiable 轉(zhuǎn)載自savemyexams
How do I solve polynomial inequalities? STEP 1:?Rearrange?the inequality?so that?one of the sides is equal to zero For example:?P(x) ≤ 0 STEP 2: Find the?roots?of the polynomial You can do this by ...
How can I solve inequalities graphically? Consider the inequality?f(x) ≤?g(x), where?f(x) and?g(x) are functions of?x if we?move?g(x) to the LHS?we get f(x) –?g(x) ≤ 0 Solve?f(x) –?g(x) = 0 to?find...
How do I find the sum & product of roots of polynomials? an??is the coefficient of the?leading term an-1??is the coefficient of the?xn-1?term Be careful: this could be equal to zero a0?is the?c...
